package a2022.a20221017;

/**
 * @author lenovo
 * @date 2022/10/17
 */
public class b {

    public static void main(String[] args) {
//        Scanner scanner = new Scanner(System.in);
//
//        int m = scanner.nextInt();
//        int n = scanner.nextInt();
//        String[][] a = new String[m][n];
//        for (int i = 0; i < m; i++) {
//            for (int j = 0; j < n; j++) {
//                a[i][j] = scanner.next();
//            }
//        }
//        System.out.println(-1);
        System.out.println("zhe\n" +
                "shi\n" +
                "yi\n" +
                "dao\n" +
                "qian\n" +
                "dao\n" +
                "ti");
    }
}
